Protector covering for loose-leaf account and like books



Nov. 6, 1923. 1,472,789

c. H. BULL PROTECTOR COVERING FOR LOOSE LEAF ACCOUNT AND L IKE BOOKSFiled Aug. 8, 1922 Patented Nov. 6, 1923.

inane PROTECTOR COVERING FOR LOOSE-LEAF ACCOUNT AND LIKE LOOKS.

Application filed August 8, 1922. Serial No. 580,385.

To all whom it may concern:

Be it known that l, CHARLES HENRY BULL, subject of the King of GreatBritain, residing at Gisborne, in the Dominion of New Zealand, haveinvented a new and useful Improved Protector Covering for Loose- LeafAccount and like Books, of which the following is a specification.

This invention relates to the protector covers of account books: of allclasses and particularly of the loose leaf-class in which the bookcovers require protection against wear by reason of the lengthy periodsover which their use is extended. The invention has been devised withthe object of providing a protector cover having means embodied thereinby which it may be readily adjusted to, the varying thicknesses that aloose leaf account book assumes, as leaves are added to or removed fromthe binder covers of such a book.

The protector is formed by two members of approved iglaterial, as stiffcanvas or the like, each made of envelope form adapted to slip over therespective covers of the book from the outer edges thereof, and madewith flap extensions beyond their inner edges adapted to pass around theback of the book, combined with a metallic buckle device of aconstruction such as to fasten the extensions together in a. manner topermit of the total length of the extensions between the two covermembers being varied at will.

The invention is illustrated in the accompanying drawings, in whichFigure 1 is an inside view of the protector. spread out straight.

Figure 2 is an edge elevation thereof.

Figure 3 is a side sectional elevation, on an enlarged scale, throughthe connecting portions of the two members.

Figure 4 is an end elevation of a book showing the protector in positionthereon.

Figure 5 is a plan of the metallic buckle device for fastening the twoprotector members together. 7

The protector is made of stiff canvas or like material out and shaped toform two pockets or envelopes A-A' of the required area to fit on to thebook covers to be protected, and to form flap extensions from the outersides projecting along their inner edges. This extension a on the memberA is made of short length, while the extension a on the member A is madeof the necessary length to provide for the requisite variations in thethickness capacity of the protector.

The metallic buckle device used with these protector members is formedin the manner shewn in Figure 5, of three longitudinal parallel bars B.C and D fixed at their ends to cross pieces E and F so as thereby toform slots between the centre bar 0 and the outer bars B and D on therespective sides thereof. These slots are made of lengths correspondingto the width of the flaps a and a of the protector members. i

i In use, this buckle is made as a permanent I attachment to theprotector member A, by passing the end of the flap a round the outer barB of the device and then sewing or otherwise fastening the flap. Theother protector member A is then connected to the buckle by passing itsflap end a in through the slot through which the flap a is. passed. anddoubling it in round the central bar C and then out through the slot onthe other side of such bar and beneath the other outer bar D, itsextremity finally passing into the inside of the envelope opening ofsuchmem her A. It will be seen therefore that the length between the inneredges of the two members A and A formed by their flaps a and a thusconnected and extending end to end, may be varied at will by drawing theflap a more or less through the buckle de vlce.

The protector thus made is placed on the book to be covered by slippingthe envelope members A and A over the outer edges of the respective bookcovers when the flaps will extend round the back of the book, be ingregulated in their length in the manner described to suit the thicknessof the book on which the protector is placed.

The buckle fastening device will prefer ably be made so that it is givena slight vbend in its transverse width; as shewn in the drawings, inorder that the bar to which the flap a is secured will occupy a planeslightly below that of the other outer bar.

By this construction a. more uniform surface on the outside of the twoflaps a and a is obtained.

I claim A protector covering for books formed by two members made ofcanvas or like material and of envelope form adapted to slip over therespective covers of the book and with flap extensions beyond theirinner edges and a buckle fastening for securing the said flaps togethermade with a central and two side parallel bars, enclosing slots betweenthem, to one of which side bars one of the flaps is permanentlyattached, substantially as specified.

In testimony whereof I aflix my signature.

CHARLES HENRY BULL.

